/usr/include/wvstreams/wvudp.h is in libwvstreams-dev 4.6.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | /* -*- Mode: C++ -*-
* Worldvisions Weaver Software:
* Copyright (C) 1997-2002 Net Integration Technologies, Inc.
*
*/
#ifndef __WVUDP_H
#define __WVUDP_H
#include "wvfdstream.h"
#include "wvaddr.h"
/**
* WvUDPStream can send and receive packets on a connectionless UDP socket.
*
* In the constructor, the socket is attached using bind() to the given
* _local address. If the address is 0.0.0.0, all addresses on the local
* host are used; if the port is 0, an available port number is chosen
* automatically.
*
* If the _rem address is 0.0.0.0, the port is not connect()ed. That means
* it can receive packets from anywhere and send them to anywhere. The
* src() and setdest() functions are useful for this. If _rem is not 0.0.0.0,
* connect() is called and the socket will only accept data to/from the
* specified remote UDP address.
*
* Buffering: all the usual WvStream-style input buffering is available,
* including getline(), but because input packets may get lost it is of
* limited usefulness. Buffering will cause particular confusion if the
* socket is not connect()ed.
*/
class WvUDPStream : public WvFDStream
{
public:
/** connect a new socket */
WvUDPStream(const WvIPPortAddr &_local, const WvIPPortAddr &_rem);
virtual ~WvUDPStream();
const WvAddr *local() const;
/**
* return the remote address (source of incoming packets, target of
* outgoing packets). This is the last host sent to or received from,
* whichever was more recent.
*/
virtual const WvAddr *src() const;
void setdest(const WvIPPortAddr &_remaddr)
{ remaddr = _remaddr; }
void enable_broadcasts();
protected:
WvIPPortAddr localaddr, remaddr;
virtual size_t uread(void *buf, size_t count);
virtual size_t uwrite(const void *buf, size_t count);
public:
const char *wstype() const { return "WvUDPStream"; }
};
#endif // __WVUDP_H
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